The Libmanan-Pulantuna Watershed Management Project (LPWMP) is one of the four pilot sites for Integrated Ecosystems Management (IEM) under the National Program Support for Environment and Natural Resources Management Project (NPS ENRMP), funded by a grant from the World Bank-Global Environment Facility (WB-GEF). After five years of project implementation from 2008 to 2012, the pilot site has emerged as a good example of replication and scaling up of IEM from the Libmanan-Pulantuna Watershed to the adjacent Albay Tres Quinale “A” Watershed, then the rest of the Bicol River Basin. It stands out as the only one among the four pilot sites to have reached such basin-wide level of replication.

As a watershed ecosystem, LPW plays a significant role in hosting the biodiversity of the remaining forested zone of the Bicol Region, cushioning the adverse effects of disasters due to typhoons, supporting local agricultural production through provision of irrigation water, and ensuring the conservation and sustainability of fisheries resources of San Miguel Bay.